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Needle

  • US 3,090,384 A
  • Filed: 04/15/1960
  • Issued: 05/21/1963
  • Est. Priority Date: 04/15/1960
  • Status: Expired due to Term
First Claim
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1. A HYPODERMIC NEEDLE FORMED FROM CYLINDRICAL STOCK HAVING A LUMEN OF UNIFORMLY CYLINDRICAL CROSS SECTION EXTENDING AXIALLY THERETHROUGH, SAID NEEDLE HAVING AN INCLINED FRONT FACE MERGING AT ITS REAR EDGE WITH THE CYLINDRICAL OUTER SURFACE OF SAID NEEDLE AND HAVING A PAIR OF SIDE FACES MEETING SAID FRONT FACE AT ACUTE ANGLES TO DEFINE A PAIR OF SHARP SIDE EDGES, SAID SIDE FACES ALSO MEETING EACH OTHER TO FORM A SHARP BOTTOM EDGE EXTENDING ALONG A LINE ANGLED SLIGHTLY WITH REFERENCE TO THE NEEDLE'"'"''"'"'S LONGITUDINALLY AXIS, SAID SIDE EDGES AND SAID BOTTOM EDGE CONVERGING TO DEFINE AN EXTREMELY SHARP NEEDLE POINT HAVING LOW PUNCTURE AND PENETRATION FORCE CHARACTERISTICS.

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